Cross cutter



G. STRECKER July 12, 1932.

CROSS CUTTER Filed Sept. 5, 1951 7170622 for GERALD fi'rmsuce-R E Patented July 12, 1932 PATENT GERALD STREGKEB, OF DARMSTADT, GERMANY oaoss CUTTER Application filed September 5, 1931, Serial No.

The present invention relates to improvements in the known cross cutters for uni formly moving webs of paper or the like with one or more rotary cross cutters, and

a consists in a particularly suitable construction of the drive for the rotary parts.

According to the present invention there is provided for this purpose a single main driving shaft arranged parallel to the direction of feed of the web and located on one longitudinal side of the machine frame, which shaft rotates on the one hand the feed roller forthe web through the medium of a vertical intermediate shaft,- and on the other hand the rotary cross cutter or cutters through a gear with a transmission ratio,-

tor 'M.

variable without steps, of which the driving and driven shafts are arranged vertically.

In the accompanying drawing Figures 1 and 2 illustrate diagrammatically in plan and side elevation a double cross cutter constructed in accordance with the invention. 7

The web A to be cut, which may 'consis j of one or more layers A, passes as usual first -between supply rollers B, Bf, to a longitudinal cutter O, C, which for example divides it into four strips in order then to be engaged by a conveying roller D'co-operating with a counter roller D. The conveying roller conducts for example two strips of the web A" directly to the rear rotary cross cutter F, whilst the remaining strips are conducted to the front cross cutter F, which also ro-' tates, by passing them over an intermediate are together with the corresponding stationary cross cutters H, H mounted as usual'in a frame J, J which are capable of being rocked in a horizontal plane.

Whereas the rear frame J need only be capable of rocking through a small angle,

as is necessary for forming a cut extending at right angles to the direction of movement of the web A, the front frame J, asis otherwise mostly usual, can be rocked about a substantially larger angle so that by means of the cross cutter H it is also possible'to produce diagonal cuts, -i. e. cuts extending at an angle to the direction of movement of the web A.

preferably co-axial.

shaft G. The two rotary cross cutters F, F

561,351, and in Ger any September 11, 1930.

- clearness are not illustrated. The shafts of the rotary cross cutters F,- F are mounted in bearings which are provlded on the frames .J, J and arealso not illustrated.

For driving all the rotary parts there is provided according to the present invention a single main shaft L which is arrangedpar- V allel tothe direction of movement of the web A and on one longitudinal side of the machine frame K, this shaft for example being preferably coupleddirectly to an electric m0- The shaft L rotates the feed roller D through a verticalintermediate shaft N and drives the rotary cross cutters F, F through a gear-O,O of known construction with arvariable transmission ratio without steps, the drivingand driven shafts P, P

and Q, Q, respectively. being vertical and The gears O, O are secured to themachine frame K itself and the adjustment of their'transmission ratio fiayfi for example, beeffected by hand wheels The.frames J, J are rotatable about the driven shafts Q, Q of the gears O, O. The longitudinal cutter C, C is driven from the main driving shaft L through the feed roller D by means of a belt F, a chain, a train of toothed wheels,-or,'as shown by chain dotted lines, through a second vertical intermediateshaft TQ' The'intermediate shaft G is driven from the main driving shaft-L' through the feed T shaft 1), for example, by means of a belt U, a chain, or, as shown in chain dotted lines,

by a-third vertical intermediate shaft V.

The transmission of the rotary movements of construction illustrated and described above. For example in a corresponding manner cross cutters may be provided wlth three or more rotary cross cutters.

I claim 1. In a cross cutter for uniformly mov ng webs of paper and so forth having a mach ne frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical "intermediate shaftbetween said main shaft and said feed roller, a rotarycross cutter, and Variable speed gearing without steps between said main drwmgshaft and 1ncludinga vertical'driving' and driven s aft;

said cross cutter, said variable gearin 2. In a cross cutter for uniformly moving webs of paper and so forth having a ma-chi'ne frame, a main driving shaft arranged parallel to the direction of feed of saidweb and arranged on one longitudinal side of said 5 machine frame, a feed roller for said web,

a vertical intermediate shaft between said main shaft and said feed roller, a plurality of crosscutters, and a plurality ofvariable transmission gears without steps located one I between said main driving shaft and each of said rotary cross cutters,each of said transmission gears including a vertical driving and driven shaft.

3. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal-side of'said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a'rotarycross cutter, and variable speed gearing without steps between said main; driving shaft and said cross cutter, said variable gearing in-' cluding avertical driving and driven shaft,

said last mentioned drivingand driven shafts being arranged co-axially. a

4. In a cross cutter for uniformly moving webs of paper and so forth having a machineframe, a main drivingshaft-arranged par- -allelrto the direction of feed of said web and arranged on one longitudinal side of saidmachine frame, a feed roller for said Web, a v vertical intermediate shaft between said main shaft and said feed roller, a plurality of cross cutters, and a plurality of variable transmission gears without'st eps located one between said main driving shaft and each of said rotary cross cutters, each of said transmissionv gears including a vertical driving and driven shaft. said last mentioned driving and driven shafts in each ofsaid transmission gears being arrangedco-axially. I

5JIn a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel tot-he direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a ver tical intermediate shaft between, said main ishaft and said feed roller, a rotary cross cut mission 7 ter, and variable speed gearing without steps chine frame, a feed roller for said web, a vertic'al intermedlate shaft between sa1d main shaft and said feed roller, a plurality of cross cutters, and a plurality of variable transmission gears without steps located one between saidmain drlvlng shaft and each of sa1d rotary cross cutters, each of said transmission gears including a vertical driving and driven shaft, said transmission gears beingsecured to said machine frame.

7. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, amain driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machme frame, a feed roller for saldweb, a vertical intermediate shaft between sa1d main shaft and said feed roller, a rotary cross cutter, and variable speed gearing without steps between said main driving shaft and said cross cutter, said variable gearing including a vertical driving and driven shaft, a stationary cross cutter cooperating with said rotary cross cutter and a, frame in which said rotary and said stationary cross cutter .are mounted, said frame' being rotatable in a horizontal plane about said last mentioned driving and driven shafts. v

8. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaftarranged par-F allel to the direction of feed of said web and arranged on onelongitudinal side of said machine frame, a feed roller for saidweb, a ver ti'cal intermediate shaft between said main shaft and said feed roller,,a plurality of cross cutters, and a plurality of variable transmission gears without steps located one between said maindriving shaft and each of said .rotary cross cutters, each of sa1d transmission gears including a vertical drivmg and driven shaft, a plurality of stationary cross cutters. said stationary crosscutters cooperating one with each of said rotary cross cut-v ters, a plurality of frames, each of said frames having mounted therein oneof said rotary cutters and its associated stationary cross cutterg' said frames being each rotatable in a horizontal plane about their respective last mentioned vertical driving and driven shafts.

9. In aicross cutter for uniformly moving websof paper and so forth having a machine frame, a maindriving shaft arranged parallelto the direction of feed of said web and lot Ill

arranged on one longitudinal side of said machine frame, a feed roller for said web, a ver- 1 tudinal cutter and means for driving said longitudinal cutter from said main driving shaft. 7

10. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a plurality of cross cutters, and a plurality of variable transmission gears without steps located one between said main driving shaft and each of said rotary cross cutters, each of said transmission gears including a vertical driving and driven shaft, a longitudinal cutter and means for driving said longitudinal cutter from said main driving shaft.

11. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a rotary cross cutter, and variablespeed gear ing without steps between said main driving shaft and said cross cutter, said variable gearing including a vertical driving and driven shaft, a longitudinal cutter and means for driving said longitudinal cutter by said feed roller.

12. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a plurality of cross cutters, and a plurality of variable transmission gears without steps located one between said main drivingshaft and each of said rotary cross cutters, each of said transmission gears including a vertical driving and driven shaft, a longitudinal cutter and means for driving said longitudinal cutter by said feed roller.

13. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame. a main driving shaft arranged parallel to the direction of feed of said weband arranged on one longitudinal side of said machine frame, a feed roller for said web,

a vertical intermediate shaft between said main shaft and said feed roller,'a rotary cross cutter, and variable speed gearing with out steps betweensaid main driving shaft and said cross cutter, said'variable gearing including a vertical-driving and driven shaft,

a longitudinal cutter, and a vertical shaft located between said main driving shaft and said longitudinal cutter for the purpose of driving the same.

14. In a cross cutter'for uniformly moving webs of paper and so forth having a machine frame,a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said Web, a vertical intermediate shaft between said main shaft and said feed roller, a plurality of cross cutters, and a plurality of variable transmission gears without steps located one between said main driving shaft and each of said rotary cross cutters, each of said transmission gears including a vertical driving and driven shaft, a longitudinal cutter, and a vertical shaft located between said main driving shaft and said longitudinal cutter for the purpose of driving the same.

15. In a cross cutter for uniformly moving webs ofipaper and so forthhaving a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a rotary crosscutter, and variable speed gearing without steps between said main driving shaft and said cross cutter, said variable gearing including a vertical driving and driven shaft, a plurality of longitudinal cutters and means for driving said longitudinal cutters from said main driving shaft. V V

16. In a cross cutter for uniformly moving webs ofpaper and so forth having a machine frame, a main driving shaft arranged parallel to the direction offeed of said web and arranged on'one longitudinal side of said,v

between said main driving shaft and each of said rotary cross cutters, each of said transmission gears including a Vertical driving and driven shaft, a plurality of longitudinal cutters and means for driving said longitudinal cutters from said main driving shaft.

17. In a cross cutter for uniformly moving webs of paper and so forth having a machine frame, a main driving shaft arranged parallel to the direction of feed of said web and arranged on one longitudinal side of said machine frame, a feed roller for said web, a vertical intermediate shaft between said main shaft and said feed roller, a plurality of signature.

GERALD STRECKER. 

